Perhaps you should try some spelling variations:
long trinh » long trip
long thanh » luong thanh, long han, truong thanh
guan chia » tuan china, tan chia
chia yuan » chiao yuan, chih yuan, chu yuan
yuan wang » yan wang, yuan kang, yuan chang
yan guan » gan guan, yan yuan, yang guang
wang lin » wang li, wang qin, yang lin

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan guan chia yuan wang lin ((long thanh) OR (long trinh)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan guan chia yuan wang lin ((long thanh) OR (long trinh)) ;*.